6.2
Requirements of Power Circuit and Cable
Frequency 50Hz
Phase and voltage
Outdoor unit
3Ph, 380
~
415V
DB module
1Ph, 220V
Recommended cable of outdoor unit
(Pieces × Sectional area)
MS-E48AIN
5×2.5 mm
2
MS-E56AIN
Recommended cable of DB module
(Pieces × Sectional area)
3×0.75 mm
2
Transmission line (Pieces × Sectional area)
2×1.5 mm
2
Recommended cable of indoor unit
(Pieces × Sectional area)
4×0.75mm
2
Capacity of the air switch
MS-E48AIN 20A
MS-E56AIN 20A
DB module
10A
Note:
The total length of the transmission line between the outdoor unit and the furthest DB module is not more
than 55m. Otherwise, the system cannot work possibility.
The specifications of the power cable and transmission line listed in the table above are determined based
on the maximum power (maximum amps) of the unit.
The specifications of the power cable listed in the table above are applied to the conduit-guarded
multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and a PVC cable jacket)
used at 40
and resistible to 90
℃
℃
, and shall be at least those of ordinary polychloroprene sheathed cords
(code designation 60245 IEC 57). If the working condition changes, they should be modified according to
the related national standard.
The specifications of the air switch listed in the table above are applied to the breaker with the working
temperature at 40
. If the working condition changes, they should be modified according to the related
℃
national standard.
The length of the recommended power cable should be less than 15 meters; otherwise,
the diameter of the
power cable is not enough.
Mentioned power cable and transmission line length is just a reference value. It may be different
depending on the condition of installation, humidity or materials, etc.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be
connected in fixed wiring.
6.3
Ground Requirements
The air conditioner is classified into the Class I appliances, so its ground ways must be reliable.
The ground wire must be fixed on the screw hole with the sign as the right figure.
The yellow-green wire of the air conditioner is the ground wire and must be fixed by the tapping screw.
And it cannot be used for other purpose or cut off. Otherwise, it will cause the hazard of electric shock.
The reliable ground terminal should be provided and the
ground
wire cannot be connected to any of the
following places: a.
Water pipe
; b. Coal gas pipe; c. Sewage pipe; d.
Lightning rod e. Telephone line f.
Other unreliable places considered by a professional.
6.4
Precautions of Electrical Wiring Work
The ground connection should be reliable and the ground wire should be connected to the dedicated
51
Содержание MS-E48AIN
Страница 1: ...HIGH POWER MULTI SYSTEM SERVICE MANUAL EN MS E48AIN MS E56AIN Outdoor unit ...
Страница 11: ...CONTROL 1 OPERATION FLOWCHART 6 ...
Страница 13: ...1 2 Heating Operation 8 ...
Страница 47: ... Outdoor unit higher than indoor unit DB DB DB DB 42 ...
Страница 70: ...Malfunction display High Pressure Protection 2 1 65 ...
Страница 87: ...PARTS GUIDE MS E48AIN MS E56AIN DB2 19SB DB3 19SB DB5 16AF HIGH POWER MULTI SYSTEM ...
Страница 88: ...Exploded view of unitMS E48AIN ...
Страница 91: ...Exploded view of unitMS E56AIN ...
Страница 94: ......
Страница 95: ......
Страница 96: ......
Страница 97: ......
Страница 98: ...Exploded view of distribution box DB5 16AF ...